Tobacco pipe



De'. 13,741938. G. E. HORMBRE'Y TOBACCO PIPE Filed March 5, 1936 /NVE/vrok.

, WITNESSES.

Patented Dec. 13, 1938 UNiTED ST'ES FATET OFFICE TBACCO PIPE ApplicationMarch 3, 1936, Serial No. 66,784 In Great Britain March 8, 1935 1 Claim.

It has heretofore been proposed-with the object of trapping andabsorbing moisture and nicotine-to provide the bowl of a tobacco pipewith a vertical chamber or passage adapted to house a plug of absorbentor porous material, said chamber or passage being formed in the rearwall (i. e. the wall nearest the pipe stem) of the bowl and having itslower end entering or crossing the bore of the stem so that smoke fromthe bowl passes directly into the bore of the stem and transverselyacross the end oi said chamber or passage.

Such a pipe construction, however, possesses a defect in that theabsorbent or porous material of which the plug is necessarily composedbecomes-due to its location-over saturated with liquid with the resultthat moisture and nicotine rejected by the plug is drawn along the smokebore of the pipe stem and received by the smoker.

The aim of the present invention is to obviate this defect and to thisend I provide in the front wall (i. e. the wall remote from the stem) ofthe pipe bowl a chamber or passage adapted to house a plug of absorbentor porous material, said passage communicating by Way of a lateral ductextending through said front wall with the interior of the bowl; thearrangement being such that smoke passes directly from the bowl into thestem, i. e. without passing through said absorbent plug.

In order to maintain the plug in an eiiicient moisture absorbingcondition, an opening (or openings) may be formed in the front wall ofthe bowl to communicate with the atmosphere and the chamber containingthe porous plug.

I will further describe my invention with the aid of the accompanyingsheet of explanatory drawings which illustrate a smoking pipe accordingto the invention.

In said drawing:-

Fig. l is a part-sectional elevation of a pipe provided with myimprovements, and

Fig, 2 is a perspective View of the stem with inverted channel-shapedextension detached.

Fig. 3 is a view of the absorbent or porous plug also detached.

Referring to the drawing:-

a indicates the bowl of the pipe, b the stem and c the smoke bore; ddenotes a substantially vertical chamber or passage formed in the frontWall of the bowl a. in order to `house a removable absorbent plug. Saidpassage d communicates with the hollow interior of the pipe bowl bymeans of a lateral duct d1 which is preferably in alignment with thesmoke bore c as illustrated. Said plug may consist of a metal or woodspindle e-see Fig. 2-covered with a suitable porous or absorbentsubstance el, such as cotton-Wool, or the like.

f is a lateral opening formed in the front wall of the pipe andcommunicating with the passage d. In some cases two or more lateralopenings f may be provided if found advisable, or alternatively, saidopening f may enter passage d from one side of the bowl only,

A metal strip g bent to form a curved longitudinal channel g1 has oneend secured in the smoke bore of stem h and is of such length that whenfitted in inverted position in smoke bore c its front end crosses thepipe bowl and enters at g2 the lateral passage d1.

It will be seen that when the pipe is in use with the plug e, e1 insitu, the latter traps the moisture and nicotine-its passage theretobeing facilitated by that portion of inverted channel g1 crossing the'pipe bowl-and so prevents same from entering the bore c so that onlysmoke and the natural flavor of the tobacco passes through said bore tothe mouth of the smoker.

Atmospheric air enters and circulates in said passage d by way oi thelateral opening f, 'and thus-by facilitating evaporation-maintains themoisture absorbing plug e, el dry to enhance its moisture-trappingeffect.

Said passage d may extend as a through passage (i. e. open at both ends)through the front wall of pipe bowl a and in this instance the air ductf may be omitted, or the upper end may be closed as illustrated, or bymeans of a removable closure piece.

It is to be noted that the vertical chamber d of the bowls front walldoes not enter or cross the smoke bore o of stem lr, and that when thepipe is in use the smoke passes directly from the bowl into the stem, i.e, without passing through said absorbent plug.

I am aware that it has been proposed to provide a smoke passage throughthe bowl wall portion of a pipe remote from the pipe stem to enable thesmoke to be drawn from the bowl into a removable ltering tube tted atthe front of the pipe and containing an absorbent packing wherethroughthe smoke passes.

What I claim as my invention and desire to secure by Letters Patent isz-A tobacco pipe in which there is provided in the usual front wall of thepipe bowl a passage housing a plug of absorbent material, said passagecommunicating by way of a lateral duct extending through said front wallwith the interior of the bowl, and a lateral duct formed in the frontwall of the pipe bowl and communicating with the atmosphere and saidplug-containing passage; the arrangement being such that smoke passesdirectly from the bowl into the stem without passing through saidabsorbent plug which is maintained in a dry condition by the provisionof said lateral air duct.

GEORGE EDWIN HORMBREY.

